Seth Shostak: ET is (Probably) Out There -- Get Ready
Dr. Seth Shostak participates in the search for extraterrestrial life at the SETI Institute. He heads up the International Academy of Astronautics' SETI Committee, and hosts a weekly radio show, "Big Picture Science." Shostak has published more than 400 popular articles on science, and his most recent book is Confessions of an Alien Hunter, A Scientist's Search for Extraterrestrial Life (National Geographic). Shostak is also an accomplished photographer. His photos have been featured on the cover of Time magazine.
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Frans de Waal: Moral Behavior in Animals
Empathy, cooperation, fairness and reciprocity -- caring about the well-being of others seems like a very human trait. But Frans de Waal shares some surprising videos of behavioral tests, on primates and other mammals, that show how many of these moral traits all of us share.
Stewart Brand: The dawn of de-extinction. Are you ready?
This video is Stewart Brand's Ted lecture on the scientific challenges and moral issues surrounding the resurrection of extinct species.
Phil Plait: How to Defend Earth From Asteroids
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The Power of Affirmation (The EPOD Theory)
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Lucianne Walkowicz: Look Up For a Change
Lucianne Walkowicz explains the importance of preserving our dark night sky from the perils of light pollution and other lesser-known factors.